X s spot-light fos



E. D. NEFF.

SPOT LIGHT FOR GUNS.

APPLICATION FILED JULY 10. was.

1,315,389. PatentedSept. 9,1919.

EDWARD DUNBAR NEFF, 0F MARYSV ILLE, PENNSYLVANIA.

SPOT-LIGHT FOR GUNS.

Specification of Letters Patent.

Patented Sept. 9, 1919.

Application filed July 10, 1918. Serial No. 244,146.

To all whom it may concern:

Be it known that I. EDWARD DUNBAR New, a citizen of the United States, residing at Marysville, in the county of Perry and State of Pennsylvania, have invented certain new and useful Improvements in Spot-Lights for Guns, of which the following)is a specification.

no ob ect of my invention is to provide an improved device which can be attached to a gun and which will project a spot of light upon the object at which the gun is to be fired.

Another object is to so construct my in vention that it can be readily adjusted with respect to the gun so that the gun will hit the object illuminated by the spot of light which is projected by the device.

A still further object is to so construct my invention that it will be kept comparatively cool by the use of ventilating means.

Another object of my invention is to so construct the ventilating means that when the device is used on a gun traveling through the air, such for example as an aeroplane, a current of air caused by the movement of the plane, will cause the rapid suction of the air through the ventilating means and thereby cool the device.

A still further object is to so construct my improved device that it can be quickly opened to permit access to the lamp and the parts contained therein.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which- Figure 1 is a side elevation of a gun having my improved device thereon,

Fig. 2 is an enlarged sectional elevation of my invention,

Fig. 3 is a transverse section taken on the line 3-3 of Fig. 2,

Fig. 4 is a transverse section. taken on the line 4-4 of Fig. 2, and

Fig. 5 is a transverse the line 55 of Fig. 2.

Referring to the drawings. 6 represents a casing which includes two substantially frusto-conical sections 7 and 8. These sections are hinged together at 9 and s ring clips 10 on the section 8 coast with a ange 11 on the section 7 to hold the sections 7 and 8 in a closed position, such for example as shown in Figs. 1 and 2.

section taken on Q The section 7 has a recess 12 in which is mounted an electric lamp socket 1.3, said socket having an electric lamp 14; therein. Wires 15 lead into the recess 12 and connect with the lamp socket to illuminate the lamp 14. The interior of the sections 7 and 8 are preferably lined with highly polished linings 16 which serve as reflectors. The

section 7 has a segmental pocket 17 projecting outwardly therefrom. The top of this pocket is provided with perforations 18, as clearly shown in Figs. 2 and 3, and the lining 16 is provided with I perforations 19 which communicate with the s ace 20 provided by the pocket 17 so that the heat from the lam 14 will pass outwardly through the per. orations 19. space 20, and perforations 18.

It will be noted that the sections 7 and 8 taper in opposite directions, the section 7 tapering rearwardly while the section S tapers forwardly. The portion of the lining 16 within the section 8 is perforated, as shown at 21, and these perforations communicate with a space 22 formed by a segmental pocket 23, the latter projecting from the bottom of the section 8.

This pocket 23 has perforations 24 in its front and a baffle plate 25 prevents any rays of light. which pass through the perforations 21, from assing out of the perforations 24. The fi ont end of the section 8 is screw threaded, as shown at 26, and a for wardly tapered tube 27 has its rear end in screw threaded connection with the threads 26 on the forward end of the section 8.

The tube 27 has a light-concentrating lens 28 adjacent its forward end. The inner surface 29 of the tube 27 is preferably painted black or coated with a black material which will not reflect rays of light so that the rays of light from the lamp 14 will practically all pass out of the forward end of the tube 27 through the lens 28 and be projected at a distance.

The section 8 is provided with a hinge 30 which includes a plate 31 for attachment to the barrel 32 of a gun 33. This attachment may be done in any suitable manner, but bands 34 are preferabl employed and these bands surround the arrel 32 of the gun and clamp the plate 31 thereto.

An adjustin coupling 35 includes a screw threaded stan ard 36 which is attached to the tube 27, and a screw threaded stem 37 has one end fitting the screw threaded portion of the standard 36. The opposite end of the stem 37 has screw threads 38 thereon which extend at a different angle to the threads than those which engage the standard 36. These threads 38 engage a socket 39 which is pi votall y connected at 40 to a plate 41. This latter plate is adapted to be secured to the barrel 32 of the gun 33. The stem 37 includes a wheel 42 whereby the stem can be easily rotated and in so doing the angle of the casing 6 and tube 27 will be changed with respect to the angle of the gun barrel 32; it being noted that the hinge 30 and the pivot 40 of the coupling 35 permit this adjustment to take place.

It will be noted that by having the perforations 24 in the front of the pocket 23, any relative movement between the device and air will cause air to pass through the perforations 24 and easing so as to efliciently cool the device.

The baiiie plate 25 prevents the illumination of the exterior of the device so that the gun cannot be spotted by an enemy if the gun is used in warfare.

The light projected by the lamp 14 will pass through the lens 28 and reflected light from the lamp 14 upon the lining 16 will also be projected through the tube 27 and lens 28 so that a strong light can be projected by this device upon the object at which the gun is to be fired, and the angle of the gun barrel 32 can be so positioned that the projectile will hit the article upon which the light is projected.

Having thus described my invention, What I claim as new and desire to secure by Let ters Patent is:

1. A device of the character described including a casing having front and rear sections respectively tapering forwardly and rrmrwardly, said front section at its bottom having a projecting pocket having perforations therein, whereby said pocket will provide an air resisting means to cause air to pass through said perforations into said casing, said rear section having perforations therein to permit the escape of the air from the casing; substantially as described.

2. A device of the character described including a casing having front and rear sections respectively tapering forwardly and rcarwardly, said front section at its bottom having a projecting pocket having perforations therein. whereby said pocket will. provide an air resisting means to cause air to pass through said perforations into said casing, said rear section. having perforations therein to permit the escape of the air from the casing; and light producing means within said casing, said pocket including a baflie for preventing light from passing out of said casing through said first perforations; substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD DUNBAR NEFF.

Witnesses:

J. H. MORLEY, J. W. BEERS.

(lopiel of this potent may be obtained tor five cents each, by addressing the "Commissioner of Patents. Washington, D. G. 

